CAT YARD Station.

The four warplanes took off in a two-plane formation, crossed the top of the mountain, and disappeared from everyone's sight.

"Attention to the planes of the Sword Squadron, now the standard atmospheric altitude is used to form a four-plane formation, 304 is side by side on my right side, with a distance of 20 meters, and 305 and 311 are behind the two sides, with a flight altitude of 8,000 meters, a speed of 700 kilometers per hour, and a course of 245."

On the way to the Yarlung Zangbo Grand Canyon, Yang Luo did not forget to train to fly in formation.

"xxx received."

Three responses sounded one after the other on the communication channel.

Xue Fei, who was originally flying side by side with Yang Luo, immediately slowed down, widened the distance, maintained a speed of 700 kilometers per hour, and flew behind Yang Luo's left.

The two J-10Cs No. 304 and No. 305 accelerated forward, catching up with the No. 301 and No. 311 J-10Cs in front of them, and stabilized their speed and altitude in their own positions.

Four-plane formation, completed.

The current formation method is actually two two-plane formations put together, and it will not be used during battle.

After flying for two minutes, Yang Luo instructed again, "305 and 311 switch positions clockwise." ”

"305 understands."

"311 understood."

Wang Hanyu adjusted the flaps, reduced the angle of attack, lowered the height, pressed the bar on the left, and suddenly the 305 J-10C rolled across from under the formation.

Then increase the angle of attack, return to the previous altitude, and fly behind Yang Luo's left.

At the same time, Xue Fei was doing the opposite action to Wang Hanyu, increasing the angle of attack to increase the height, pulling the right lever, and rolling from the top of the formation to Wang Hanyu's position before.

On the next journey, according to Yang Luo's instructions, the four fighters kept changing their formation.

There are three most commonly used formations for four-machine formations, which are box-shaped, echelon-shaped, and wedge-shaped.

A box-shaped formation is a quadrilateral formation of four fighters in the horizontal direction, which is generally a formation to cover ground attacks.

Three fighters formed a three-plane arrow team in front, covering the fighters flying at the rear with ammunition on the ground.

The echelon is well understood, the four fighters keep a certain distance, generally flying at the same altitude, but sometimes they also pull apart, and the four fighters are at different altitudes.

The wedge formation is somewhat similar to the box type, and the three fighters form a three-plane arrow team in front, the only difference is that there is also a fighter that flies diagonally behind one of the wingmen, as the wingman of the wingman.

The most commonly used four-plane formation attack formation is this wedge formation, where the long plane is responsible for attacking, the wingman is responsible for escorting the long plane, and the wingman of the wingman is guarding one of the wingmen.

In the current air combat, the most widely used is the four-plane formation, and the three-plane formation generally only appears in training or performance activities.

Because compared to the three-plane formation, the four-plane formation is more flexible, and it can be broken down into two two-plane formations at any time, without worrying about someone leaving alone in the chaotic air battle.

In the continuous formation flight training, the four J-10Cs slowly approached the Yarlung Zangbo Grand Canyon.

"Prepare to descend at a height, the descent rate is 50 meters per second, the formation remains the same, pay attention to observation." Yang Luo reminded.

At this time, Yang Luofei was at the rear, and the formation method was a trapezoidal formation.

Adjust the angle of attack to reduce lift.

Slightly press the joystick with the head facing slightly.

The four J-10C fighters dive at a relatively small interval and at a small angle at the same time to reduce the altitude, and the movements are neat and consistent, as if they are being operated by one person.

Ahead, the Brahmaputra Grand Canyon is already in sight, like a huge scar between the mountains.

The height continues to decline.

"The formation was disbanded, 311 was ready to enter the canyon, and 304 and 305 followed in turn." Yang Luo instructed.

"311 understood."

After Xue Fei responded, he took a deep breath of airborne oxygen, and his eyes stared at the curved Grand Canyon in front of him, which was extremely steep and intimidating.

Without hesitation, Xue Fei pressed the rod and pedaled the rudder, and manipulated the No. 311 J-10C fighter to plunge headlong.

After Xue Fei went down, Xu Zhiqiang and Wang Hanyu immediately distanced themselves to follow.

"Pay attention to each machine, choose the height that suits you, don't force it." Yang Luo reminded again.

"XXX understands."

Three serious voices sounded in turn in the confidential communication channel.

Yang Luo didn't go down, but flattened when he descended to a relative altitude of about 1,200 meters, and accelerated at the same time, catching up with Xue Fei who was in the front.

"311, report altitude and speed." Yang Luo's face was calm, and while controlling the fighter, he paid attention to the flight attitude of the 311 J-10C.

"The altimeter shows 650 meters, the relative altitude should be around 500 meters, and the speed is 600 kilometers per hour." Xue Fei controlled the somewhat shaky fighter plane as smoothly as possible, his eyes were fixed on the front, and he didn't dare to blink for fear that there would be a sudden turn in front of him.

Yang Luo asked Xu Zhiqiang and Wang Hanyu about their height and speed again.

The two of them were about the same as Xue Fei, and their speed and altitude were not much different.

The Yarlung Zangbo Grand Canyon was the most difficult terrain Yang Luo had ever encountered, and even he did not dare to take too many risks in the morning, so he could only fly in an area that remained at a relative altitude of about 400 meters.

Xue Fei and the three of them were able to do this for the first time, and Yang Luo was already quite satisfied.

Strictly speaking, the complex topography and changing low-altitude turbulence of the Yarlung Zangbo Grand Canyon should belong to the low-altitude flight forbidden area, and it is strictly forbidden to fly at too low altitude.

As time went on, we finally came to the most difficult place, and it was necessary to perform the Herbst maneuver to make a 180-degree U-turn.

Yang Luo also cheered up his spirits.

This is one of the most dangerous places in the 500-kilometer Grand Canyon.

"Attention everyone, there is a 180-degree U-turn ahead, the turbulence is very complicated, please be prepared, climb or use the horse pistol, the choice is yours."

Yang Luo reminded, and at the same time, he was also ready to turn.

Even though Yang Luo's height was seven or eight hundred meters higher than Xue Fei's, the mountains on both sides were even higher and very steep, so they had to use the Herb maneuver or climb.

Xue Fei, who was flying at the front, did not use the horse gun in the end, but chose to increase the altitude early, climb high enough to make a regular maneuver turn, and then dive into the canyon.

This time it didn't come as suddenly as in the morning, Yang Luoshi, who had been prepared for a long time, performed a Herbst maneuver and easily made a 180-degree U-turn, without being attacked by the downdraft again.

"301, awesome."

Seeing Yang Luo's crisp and neat turning action, Xu Zhiqiang couldn't wait to give a thumbs up and praise, but no, at this time, his hands and feet couldn't leave, even for a second.

"304, 305, depending on your choice." Yang Luo said, with a faint smile on his face.

"I'll use the rifle too." Xu Zhiqiang said, with a solemn look on his face.

Xu Zhiqiang chose to use the Herbst maneuver, as did Wang Hanyu at the rear, instead of climbing like Xue Fei, but they still pulled the relative altitude to 1,000 meters.

The relative altitude of 500 meters is still too dangerous, especially after hearing Yang Luo talk about the downdraft, he dare not use the Herbst maneuver at such a low altitude.

However, the two of them were not as simple as Yang Luo, but they successfully turned around, but they were a little in a hurry, and the posture of the fighter was not very good, which made people sweat.

Wang Hanyu, who was at the back, even dropped a lot of height before pulling the fighter up.

"304 turned."

"305 has also been successfully turned."

Xu Zhiqiang and Wang Hanyu reported one after another after a successful turn.

"Well done." Yang Luo praised.

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